{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755516",
    "entityType": "User",
    "nonce": "0x716ef2403cef1d6c6f009c1ff2c67cab0f6dad28655a3dbf05f385814e1c2d3e",
    "signature": "0x852ab4854d23e0c086afabbe0141952708b70ea5505e69472006b53c4a9e60ce5c47f2f94640366071692625e62f014d45a81bd21c9d9e2e545a034b7317e68e1b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}